short



(No Model.) 2 Sheets-Sheet 1.

s H SHORT MOTOR FRAME FOR ELBOTRIO LOCOMOTIVES.

No. 479,469. Patented July 26, 1892.

(No Model.) 2 Sheets-Sheet 2.

s. H. SHORT. MOTOR FRAME FOR ELECTRIC LOCOMOTIVES. No. 479,469. Patented July 26, 1892,

Suva M07, Q/VM away UNITED STATES PATENT OFFICE.

SIDNEY H. SHORT, OF CLEVELAND, OHIO, ASSIGNOR TO THE SHORT ELECTRIC RAILWAY COMPANY, OF SAME PLACE.

MOTOR-FRAME FOR ELECTRIC LOCOMOTIVES.

SPECIFICATION forming part of Letters Patent No. 479,469, dated July 26, 1892.

Application filed October 29, 1889. Serial No. 328,546. (No model.)

To all whom it may concern.-

Be it known that I, SIDNEY H. SHORT, of Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Truck-Frames for Street-Railway Electric Motors; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to an improvementin truck frames or supports for street-railway electric motors, the object of the invention being to thoroughly insulate the motor from the ground by insulating it from the metallic portions of the truck or frame of the car on which the motor is mounted, and thus prevent any leakage of current to the ground.

With this object in View the invention consists in certain features of construction and combinations of parts, as will be hereinafter described, and pointed out in the claim.

In the accompanying drawings, Figure 1 is a view, partly in side elevation and partly in vertical section, of my improvement; and Fig. 2 is a plan view of a portion of the frame. Fig. 3 is a plan view of a truck provided with the invention.

A represents one of the wheels, and B the axle, of a street-car truck. On the axle is mounted a box C, which is provided with a box-frame D, to which is firmly bolted one end of a strong wooden beam E. In order that the wooden beam may constitute a good insulating connection, it is preferably boiled in oil and made thoroughly waterproof. In addition it may be covered by any insulating or waterproofing material, and, if desired, may be insulated from the metallic frames and bolts by sheets and washers of asbestus, vulcanized fiber, or other material. To the other ends of the beams E, two being used, one on each side of the truck, is secured the motorframe F, the latter being provided with boxes G for the support of a counter-shaft carrying gearing for transmitting power from the motor to the car. Motor-frame F is seated upon a wooden cross-beam H, which is supported on the truck-frame I. The cross-beam H is also made of woodboiled in oil and made waterproof, so as to thoroughly insulate the motorframe from the truck. It will thus be observed that the motoris providedwith astronganddurable support and is thoroughlyinsulated from the truck and ground by dry wood, which insures high insulation and resistance againstthe leakage of current to the ground. The truckframe I is supported by the car-axles, being preferably connected with the pedestals carrying the axle -boxes. (Not shown.) K is any suitable motor having a gear L on its armature-shaft, which meshes with gear M on the counter-shaft, the opposite end of which is provided with a gear N, which meshes with gear 0 on the car-axle. GearO is constructed with a wooden web or other insulating material (not shown) for the purpose of electrically insulating the gearing of the motor from the car-axle.

It is evident that the form, construction, and relative arrangement of the different parts of the supporting-frame may be widely varied without departing from my invention, and hence I would have it understood that I do not restrict myself to the particular construction shown and described; but,

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

The combination, with a driving-axle, of a two-part motor-frame, one part journaled on the axle and the other supported by the truckframe, wooden beamsinterposed between and serving to connect the two parts of the motor frame, and a wooden cross-beam supported at the ends on the side bars of the truck-frame and serving as an insulating-support for one end of the motor-frame, substantially as set forth.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

SIDNEY I-I. SHORT.

Witnesses:

J. C. WILLIAMS, E. H. MORRISON. 

